Random uncatchable access violations with threads
lazarus / 62-General

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Wosi · 2017-01-24 21:01

Hello,

I see random crashes in my Win32 console application which are giving
me sleepless nights. There is already a bug ticket for this issue but
I would like to attract a bigger audience so I post it here again.
Maybe anybody of you discovers a defect in my code or can point to
suspicious RTL code so the FPC team is able to fix that bug.

There's a sample project attached to the issue that crashes almost
every time.

I would like to ask for your help.

 - Does the sample project crash on your machine too? I tested on
Windows 7 and Windows 10. It's unstable on both systems.
 - Do you see any chance of a race condition in my code that could
lead to an AV? 
 - Did you ever face a similar issue? How did you solve it? Is there
any workaround?

Thanks,
Wosi